Online laser processing device for adhesive tape

Abstract

The utility model belongs to the field of production and manufacturing of adhesive tapes, and particularly relates to an online laser processing device for an adhesive tape. In order to reduce the types of lining paper stored in a warehouse, the utility model provides an on-line laser processing device for an adhesive tape. The adhesive tape online laser processing device comprises a rack and a laser cutting device, the rack comprises a working plane used for supporting lining paper moving from front to back, the laser cutting device comprises a laser nozzle used for cutting the lining paper, and the laser nozzle is movably installed on the rack in the left-right direction. Each group of laser nozzles has a cutting state for continuously cutting the lining paper so as to cut the lining paper adhered with an adhesive tape into at least one adhesive tape with a set width, and each group of laser nozzles also has a dotting state for intermittently cutting the lining paper so as to cut an easy-to-tear line on the lining paper. In the adhesive tape processing process, the lining paper which is adhered with the adhesive tape and has the same specification is cut into the lining paper with different specifications by using the laser nozzle, so that the types of the lining paper needing to be stored are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the production and manufacture field of adhesive tape, in particular, relate to an adhesive tape on -line laser processing device. BACKGROUND

[0002] There are two kinds of adhesive tapes in the prior art:

[0003] The first kind: there is only one adhesive strip on the backing paper of the adhesive tape, for example, the Chinese utility model patent with the authorization announcement number CN218708285U and the authorization announcement date of 2023.03.24 discloses a butyl sealing waterproof adhesive tape, which comprises release paper (equivalent to backing paper) and adhesive tape body (equivalent to adhesive strip) adhered to the release paper.

[0004] The second kind: there are at least two adhesive strips on the backing paper of the adhesive tape, for example, the Chinese utility model patent with the authorization announcement date of CN221797362U and the authorization announcement date of 2024.10.01 discloses a high-temperature-resistant vacuum bag butyl sealing adhesive tape, which comprises protective paper (equivalent to backing paper) and at least two butyl adhesives (equivalent to adhesive strips) adhered to the protective paper, and a tear line is arranged between the two adjacent butyl adhesives.

[0005] In the manufacture of the above two kinds of adhesive tapes, the adhesive strip needs to be adhered to the backing paper with a certain width. In actual production, since the adhesive tape has various sizes, the backing paper with the largest specification needs to be cut into various specifications with different widths, and the backing paper with various specifications is stored in the warehouse for standby, and when manufacturing the adhesive tape with a set specification, the backing paper with the set specification needs to be selected; at the same time, under the premise that the width of the backing paper is the same, when the adhesive tape has at least two adhesive strips, the widths of the adhesive strips in adhesive tapes of different specifications are also different, so the positions of the tear lines are also different, and therefore the backing paper with different positions of the tear line also needs to be stored in the warehouse for standby.

[0006] Based on the above reasons, in actual production, the types of the backing paper stored in the warehouse are more, and at the same time, since various backing papers cannot be mixed, the number of the same type of backing paper is also more, which leads to that the types and the number of the backing paper in the warehouse are more, which is not conducive to management and has high storage cost. UTILITY MODEL CONTENT

[0007] The utility model aims at providing an adhesive tape on-line laser processing device to solve the technical problems of more types and number of backing paper, which is not conducive to management and has high storage cost.

[0008] To achieve the above-mentioned purpose, the technical scheme of the adhesive tape on-line laser processing device provided by the utility model is:

[0009] An online laser processing device for adhesive tape includes a frame and a laser cutting device. The frame includes a working plane for supporting a backing paper moving from front to back. The laser cutting device includes m sets of laser nozzles for cutting the backing paper, where m ≥ 1. Each set of laser nozzles is movably mounted on the frame in the left-right direction to adjust the relative position of each set of laser nozzles with the backing paper. Each set of laser nozzles has a cutting state for continuously cutting the backing paper to cut the backing paper with adhesive strips into at least one tape of a set width, and / or, each set of laser nozzles also has a dotting state for intermittently cutting the backing paper to cut easy-tear lines on the backing paper.

[0010] Furthermore, when at least one set of laser nozzles is in the dotting state, each set of laser nozzles used to cut the same tear line includes two laser nozzles that are staggered in the front-back direction, and the two laser nozzles used to cut the same tear line are staggered in the left-right direction.

[0011] Furthermore, the frame is equipped with a scale extending in the left and right direction to facilitate adjustment of the left and right position of the laser nozzle.

[0012] Furthermore, the laser nozzle is equipped with a pointer for indicating the scale markings.

[0013] Furthermore, each laser nozzle is movably mounted on the frame in the left-right direction.

[0014] Furthermore, the tape online laser processing device also includes a dust suction port, which is used to remove the dust generated during laser cutting. The dust suction port is located on the working plane, and the end part of the laser emitted by the laser nozzle is located inside the dust suction port.

[0015] Furthermore, there are two suction ports, which extend in the left and right direction. One suction port is arranged to correspond to one of the laser nozzles in the group of laser nozzles used for cutting the easy-tear line, and the other suction port is arranged to correspond to another laser nozzle in the group of laser nozzles used for cutting the easy-tear line.

[0016] Furthermore, the tape online laser processing device also includes a dust suction port, which is used to remove the dust generated during laser cutting. The dust suction port is located on the working plane, and the end part of the laser emitted by the laser nozzle is located inside the dust suction port.

[0017] Furthermore, the laser nozzle is arranged vertically to allow the laser emitted by the laser nozzle to extend in a vertical direction, and the dust suction port is located directly below the laser nozzle.

[0018] Furthermore, the laser cutting equipment also includes a laser generator for emitting laser light, which is arranged on one side of all the laser nozzles and is connected to the laser nozzles via optical fiber.

[0019] The beneficial effects of this online laser processing device for adhesive tape are as follows: This invention is a pioneering creation. The working plane supports the backing paper moving from front to back. Using an adjustable laser nozzle, the backing paper can be cut into various specifications (including backing paper width, whether it contains a tear line, and the location of the tear line). Therefore, it is unnecessary to stock multiple specifications of backing paper; only the backing paper with adhesive strips needs to be cut to the appropriate specifications during tape manufacturing. Simultaneously, when the laser nozzle is in the cutting state, it can cut the backing paper with adhesive strips into at least one tape. When the backing paper with adhesive strips is cut into at least two tapes, compared to the prior art which can only process one tape using a set specification of backing paper at a time, the processing efficiency is significantly improved. Attached Figure Description

[0020] Fig. 1 This is a schematic diagram of the structure of an online laser processing device for tape when all laser nozzles are in the dotting state.

[0021] Fig. 2 This is a schematic diagram of a tape online laser processing device where some laser nozzles are in the cutting state and others are in the dotting state.

[0022] Fig. 3 This is a schematic diagram of the structure of an online laser processing device for tape when all laser nozzles are in the cutting state.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Laser generator; 2. Working plane; 3. Dust suction port; 4. Laser nozzle; 5. Scale; 6. Backing paper; 7. Easy-tear line; 8. Cutting line. Detailed Implementation

[0025] For ease of understanding, in this utility model, the length direction of the backing paper is defined as the front-to-back direction, and the width direction of the backing paper is defined as the left-to-right direction. In the entire tape production line, an extrusion device for squeezing the adhesive strip onto the backing paper is provided upstream (i.e., in front) of the tape online laser processing device, and a winding device is provided downstream (i.e., behind) of the tape online laser processing device. The winding device is used to wind up the tape to drive the tape to move from front to back.

[0026] In this invention, "online" refers to a continuous production line. Specifically, the online laser processing device for adhesive tape cannot operate independently or be stopped independently within a continuous, complete adhesive tape production line. In contrast, in the prior art, equipment for cutting backing paper into different widths is offline, meaning these devices can operate or stop independently.

[0027] The core inventive concept of this utility model is as follows: during the tape processing, a laser nozzle is used to cut backing paper of the same specification with adhesive strips attached into backing paper of different specifications, thereby reducing the types of backing paper that need to be stored. In use, the online laser processing device for tape can be installed between the existing extrusion device and the existing winding device.

[0028] The present invention will be further described in detail below with reference to the embodiments.

[0029] Specific embodiments of the online laser processing device for adhesive tape provided by this utility model:

[0030] like Figs. 1-3 As shown in the specific embodiment of the first type, the online laser processing device for tape includes a frame and a laser cutting device. The frame includes a working plane 2 for supporting the backing paper 6 moving from front to back. The laser cutting device includes m sets of laser nozzles 4 for cutting the backing paper 6, where m ≥ 1. Each set of laser nozzles 4 is movably mounted on the frame in the left-right direction to adjust the relative position of each set of laser nozzles 4 with the backing paper 6. Each set of laser nozzles 4 has a cutting state for continuously cutting the backing paper 6 to cut the backing paper 6 to a set width, and / or, each set of laser nozzles 4 also has a dotting state for intermittently cutting the backing paper 6 to cut easy-tear lines 7 on the backing paper 6.

[0031] In the first-1 type of specific implementation, in Figs. 1-3 In this case, m=3.

[0032] In the first and second specific embodiments, m=1. At this time, the laser nozzle 4 can cut the backing paper 6 to a set width. When it is not necessary to change the width of the backing paper 6, the laser nozzle 4 can also process the tear line 7 on the backing paper 6, thereby reducing the number of specifications of backing paper 6 that need to be stored in the warehouse.

[0033] In other specific implementations, m can also be 2, 4, 5 or other values.

[0034] In the first to third specific embodiments, the laser nozzle 4 is equipped with a slider, and the frame is equipped with a slide rail. The laser nozzle 4 is slidably mounted on the frame, which is simple in structure and facilitates adjustment of the left and right positions of the laser nozzle 4. In actual processing, since the laser nozzle 4 is not subjected to any force, it can stop at the set position under the action of gravity and friction, without the need for a locking structure.

[0035] Of course, in the specific embodiments of types 1-4, the difference from the specific embodiments of types 1-3 is that a locking structure is provided on the frame. The locking structure consists of multiple set screws arranged on the frame in the left-right direction. The set screws are used to press the laser nozzle 4, thereby fixing the laser nozzle 4 in a set position.

[0036] In the specific embodiments of categories 1-5, the laser nozzle 4 is provided with rollers, and the frame is provided with a raceway, so that the laser nozzle 4 is rotatably mounted on the frame.

[0037] In this embodiment, the method of mounting the laser nozzle 4 on the frame is not limited. The essence of mounting the laser nozzle 4 on the frame is that item A (laser nozzle 4) is movably mounted on item B (frame) in the left-right direction. At the same time, when item A is not subjected to external force or locked by the locking mechanism, item A can naturally remain stationary in the set position. The above-mentioned assembly relationship is conventional prior art in the art and will not be described in detail here.

[0038] A dust collection device with a suction port 3 is required during laser cutting. The specific configuration of the suction port 3 is as follows:

[0039] In specific embodiments of types 1-6, the tape online laser processing device further includes a dust suction port 3, which is used to remove dust generated during laser cutting. The dust suction port 3 is located above or to the side of the backing paper 6.

[0040] In the specific embodiment of type 1-6-1, there are m suction ports 3, and each group of laser nozzles 4 corresponds to one suction port 3, which is simple in structure.

[0041] In the specific embodiments of type 1-6-2, there are 2m dust suction ports 3, and each laser nozzle 4 has a dust suction port 3 on both the front and rear sides.

[0042] In the specific embodiments of categories 1-7, the dust suction port 3 is located on the working plane 2, and the end part of the laser emitted by the laser nozzle 4 is located inside the dust suction port 3, thereby preventing dust from drifting onto the adhesive strip and preventing dust from sticking to the adhesive strip, thus improving the quality of the tape; at the same time, it can also conveniently prevent the dust suction structure such as the pipe connected to the dust suction port 3 from interfering with the laser nozzle 4.

[0043] In the specific embodiment of type 1-7-1, there are m suction ports 3, and each group of laser nozzles 4 corresponds to one suction port 3, which is simple in structure.

[0044] In the specific embodiments of type 1-7-2, there are two suction ports 3, which extend in the left and right direction. One suction port 3 is arranged corresponding to one of the laser nozzles 4 in each group of laser nozzles 4 used for cutting the easy-tear line 7, and the other suction port 3 is arranged corresponding to the other laser nozzle 4 in each group of laser nozzles 4 used for cutting the easy-tear line 7. When the laser nozzle 4 moves in the left and right direction, it can be ensured that the laser nozzle 4 is always located in the suction port 3, and the number of suction ports 3 is small, which is convenient for processing and manufacturing.

[0045] In the specific embodiments of type 1-7-3, the laser nozzle 4 is arranged vertically to extend the laser emitted by the laser nozzle 4 in the vertical direction, and the dust suction port 3 is located directly below the laser nozzle 4, which is a simple structure.

[0046] In the specific embodiments of type 1-7-4, the laser nozzle 4 is arranged at an angle. At this time, the line connecting the dust suction port 3 and the laser nozzle 4 is parallel to the orientation of the laser nozzle 4, thereby ensuring that the end of the laser emitted by the laser nozzle 4 is located inside the dust suction port 3.

[0047] The following describes this utility model in conjunction with the actual processing of the product:

[0048] When processing tape with only one adhesive strip, each group of laser nozzles 4 is in the cutting state to cut the backing paper 6 with n adhesive strips into n tapes of a set width (at this time, the laser nozzles 4 cut cutting lines 8 on the backing paper 6), n=1 or n≥2. When the laser nozzles 4 are only in the cutting state, the online laser processing device for tape can process tapes of different widths with only one adhesive strip, thereby reducing the required specifications of the backing paper 6.

[0049] At this time, the number of laser nozzles 4 in each group can be one or two. When the number of laser nozzles 4 in each group is one, the width of the tape must be calculated from the left edge (or right edge) of the backing paper. At this time, it is necessary to measure the distance between the edge of the backing paper and the laser nozzle 4. When the number of laser nozzles 4 in each group is two, the tape of the set width can be cut directly in the middle of the backing paper. At this time, it is only necessary to measure the left and right distance between the laser nozzles 4 in the same group.

[0050] When processing tape with p strips, p≥2, if the laser nozzle 4 is only in dotting mode, all groups of laser nozzles 4 are in dotting mode to cut easy-tear lines 7 between two adjacent strips and on the side of the edge strip away from other strips. The worker ensures that the tape has the set width by tearing off the easy-tear lines 7 between non-strips, thereby reducing the required specifications of the storage backing paper 6.

[0051] When processing tape with p strips, where p ≥ 2, if the laser nozzle 4 has both dotting and cutting states, in one mode, m-1 sets of laser nozzles 4 are in dotting state to cut easy-tear lines 7 between two adjacent strips, and the other set of laser nozzles 4 is in cutting state to cut the backing paper 6 to a set width; in another mode, m-2 sets of laser nozzles 4 are in dotting state to cut easy-tear lines 7 between two adjacent strips, and the other two sets of laser nozzles 4 are in cutting state to cut the backing paper 6 to a set width.

[0052] The working plane 2 supports the backing paper 6, which moves from front to back. The laser nozzle 4, with adjustable left and right positions, cuts the backing paper 6 into various sizes (including the width of the backing paper 6, whether it contains an easy-tear line 7, and the location of the easy-tear line 7). This eliminates the need to stock multiple sizes of backing paper 6; only the backing paper 6 with adhesive strips needs to be cut to the appropriate size during tape manufacturing. Simultaneously, when the laser nozzle 4 is in the cutting state, it can cut the backing paper 6 with adhesive strips into at least one tape. When the backing paper 6 with adhesive strips is cut into at least two tapes, the processing efficiency is significantly improved compared to existing technologies that can only process one tape using a set size of backing paper 6 at a time.

[0053] When processing tape with only one strip, the laser cutting equipment is controlled to continuously cut the backing paper 6 with each group of laser nozzles 4, thereby enabling the simultaneous processing of n tapes of a set width. When n=1, tapes of different specifications can be processed by controlling the position of the laser nozzles 4. When n≥2, the processing efficiency can be effectively improved compared to the existing technology that can only process one tape at a time.

[0054] When processing tape with p strips, a laser nozzle 4 can be used to create an easy-tear line 7 between two adjacent strips to obtain tape of a set specification. This invention provides two cutting methods to control the width of the tape: First, an easy-tear line 7 is cut on the side of the edge strip away from other strips. The worker can then tear off the easy-tear line 7 on the side of the edge strip away from other strips to obtain tape of the set width. In this case, easy-tear lines 7 can be processed on the left and / or right sides of all strips. Second, the laser nozzle 4 is used to continuously cut the backing paper 6 to cut the backing paper 6 to the set width. In this case, the left and / or right sides of the backing paper 6 can be cut off.

[0055] To effectively reduce the width of the tear line 7, such as Figs. 1-3 As shown, the present invention has made the following improvements to the setting position of the laser nozzle 4:

[0056] In the second type of specific embodiment, when at least one set of laser nozzles 4 is in the dotting state (i.e. when processing tape with p strips), each set of laser nozzles 4 used to cut the same easy-tear line 7 includes two laser nozzles 4 arranged in a staggered manner along the front-back direction, and the two laser nozzles 4 used to cut the same easy-tear line 7 are arranged in a staggered manner along the left-right direction.

[0057] Because the laser nozzles 4 are relatively large, when they are arranged side-by-side in the same group, the width of the tear line 7 is also large. This results in a smaller number of adhesive strips that can be accommodated on the backing paper 6 and a smaller number of tear lines 7 that can be processed, leading to material waste. To overcome this problem, the two laser nozzles 4 in the same group are staggered in the front-back direction. This avoids interference between the laser nozzles 4 and effectively reduces the width of the tear line 7, improving material utilization and reducing costs.

[0058] In the second-1 type of specific embodiment, two laser nozzles 4 in the same group are fixedly connected as one unit, and each group of laser nozzles 4 is movably mounted on the frame in the left-right direction.

[0059] In the second-second embodiment, unlike the second-first embodiment, each laser nozzle 4 is movably mounted on the frame in the left-right direction; that is, two laser nozzles 4 used for cutting the same tear line 7 are movably mounted on the frame in the left-right direction. In this case, the width of the tear line 7 can be controlled by adjusting the left-right spacing between the laser nozzles 4 in the same group.

[0060] In the third specific embodiment, the same group of laser nozzles 4 for cutting the same tear line 7 are arranged side by side in the left-right direction. At this time, the laser nozzles 4 can also process the tear line 7, thereby reducing the number of specifications of backing paper 6 that need to be stored.

[0061] To facilitate adjustment of the left and right positions of the laser nozzle 4, such as Figs. 1-3 As shown, in the fourth specific embodiment, the frame is provided with a scale 5 extending in the left and right direction to facilitate the adjustment of the left and right position of the laser nozzle 4. The scale 5 can be used to determine the left and right position of the laser nozzle 4, thereby facilitating the adjustment of the spacing between different laser nozzles 4, and also facilitating the adjustment of the relative position of the laser nozzle 4 and the backing paper 6.

[0062] In order to better determine the left and right positions of the laser nozzle 4, in the fourth-1 specific embodiment, the laser nozzle 4 is provided with a pointer for indicating the scale 5. The position of the laser nozzle 4 can be easily determined by the scale indicated by the pointer.

[0063] In the specific implementation of type 4-2, the laser nozzle 4 may not have a pointer. In actual production, any straight-line product such as a ruler or pen can be used to compare the scale of the laser nozzle 4.

[0064] In the fifth specific embodiment, no scale 5 is provided on the frame. In this case, the operator needs to use an additional scale to measure the distance between the laser nozzle 4 and the leftmost (or rightmost) side of the working plane 2, and adjust and measure the distance between two adjacent laser nozzles 4.

[0065] Compared to the fourth type of specific implementation, the fifth type of specific implementation requires more time and effort to adjust the left and right positions of the laser nozzle 4. However, in actual production, the left and right positions of the laser nozzle 4 only need to be adjusted when the specifications of the produced tape need to be changed. That is, the left and right positions of the laser nozzle 4 do not need to be adjusted frequently. Therefore, the fifth type of specific implementation can also meet the actual production needs.

[0066] To simplify the structure, such as Figs. 1-3 As shown, in the sixth specific embodiment, the laser cutting equipment also includes a laser generator 1 for emitting laser light. The laser generator 1 is arranged on one side of all the laser nozzles 4, and the laser generator 1 and the laser nozzles 4 are connected by optical fiber. The structure is simple and easy to arrange the laser generator 1.

[0067] In the seventh specific embodiment, the laser nozzle 4 is arranged vertically, and the laser generator 1 is arranged directly above the laser nozzle 4. In this case, the laser generator 1 needs to be fixed on the ceiling of the factory building.

[0068] It should be noted that the classification of specific embodiments in this utility model is based solely on specific features and does not imply that other categories do not contain this specific feature. For example, the structure of a Class 1 embodiment may be the same as that of a Class 2 or Class 3 embodiment.

[0069] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features, or organically combine different types of specific implementation methods to create appendices. Figs. 1-3 The specific embodiments described herein are provided, but those skilled in the art can certainly devise other specific embodiments not shown in the accompanying drawings. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An online laser processing device for adhesive tape, characterized in that, The device includes a frame and a laser cutting device. The frame includes a working plane for supporting a backing paper that moves from front to back. The laser cutting device includes m sets of laser nozzles for cutting the backing paper, where m ≥ 1. Each set of laser nozzles is movably mounted on the frame in the left-right direction to adjust the relative position of each set of laser nozzles with the backing paper. Each set of laser nozzles has a cutting state for continuously cutting the backing paper to cut the backing paper with adhesive strips into at least one strip of adhesive tape of a set width. And / or, each set of laser nozzles also has a dotting state for intermittently cutting the backing paper to cut easy-tear lines on the backing paper.

2. The online laser processing device for adhesive tape as described in claim 1, characterized in that, When at least one set of laser nozzles is in the dotting state, each set of laser nozzles used to cut the same easy-tear line includes two laser nozzles that are staggered in the front-back direction, and the two laser nozzles used to cut the same easy-tear line are staggered in the left-right direction.

3. The online laser processing device for adhesive tape as described in claim 1 or 2, characterized in that, The frame is equipped with a scale extending in the left and right direction to facilitate adjustment of the left and right position of the laser nozzle.

4. The online laser processing device for adhesive tape as described in claim 3, characterized in that, The laser nozzle is equipped with a pointer for indicating the scale markings.

5. The online laser processing device for adhesive tape as described in claim 1 or 2, characterized in that, Each laser nozzle is movably mounted on the frame in the left-right direction.

6. The online laser processing device for adhesive tape as described in claim 2, characterized in that, The tape online laser processing device also includes a dust suction port, which is used to remove the dust generated during laser cutting. The dust suction port is located on the working plane, and the end part of the laser emitted by the laser nozzle is located inside the dust suction port.

7. The online laser processing device for adhesive tape as described in claim 6, characterized in that, There are two suction ports, which extend in the left and right direction. One suction port is arranged to correspond to one of the laser nozzles in the group of laser nozzles used for cutting the easy-tear line, and the other suction port is arranged to correspond to another laser nozzle in the group of laser nozzles used for cutting the easy-tear line.

8. The online laser processing device for adhesive tape as described in claim 1, characterized in that, The tape online laser processing device also includes a dust suction port, which is used to remove the dust generated during laser cutting. The dust suction port is located on the working plane, and the end part of the laser emitted by the laser nozzle is located inside the dust suction port.

9. The online laser processing device for adhesive tape as described in any one of claims 6 to 8, characterized in that, The laser nozzle is arranged vertically to allow the laser emitted by the laser nozzle to extend in a vertical direction, and the dust suction port is located directly below the laser nozzle.

10. The online laser processing device for adhesive tape as described in claim 1 or 2, characterized in that, The laser cutting equipment also includes a laser generator for emitting laser light. The laser generator is arranged on one side of all the laser nozzles and is connected to the laser nozzles by optical fiber.

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